PACK REGULATOR FAULT MEL

Disclaimer: 

▪︎This content is Not an official document and does not represent the views of Airbus or any other aviation authority.

▪︎The information provided may be incorrect or misinterpreted and should not be relied upon for decision-making. 

▪︎Always refer to official documents and consult with a qualified aviation professional before making any decisions based on the information provided in this blog post.

▪︎The information provided in this blog post is based on personal study and review.

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ECAM : AIR PACK REGULATOR FAULT

 

In my experience, the PACK regulator fault is one of the ECAM alerts that I often see during the taxi.

 

Aside from the decision about when to apply the MEL and QRH reset procedures:

 

If we look into the MEL for the PACK regulator fault, it divides into several aircraft statuses that we need to consider.

 

Among these statuses, the only condition that requires a return to the gate is when the pack flow control valve is affected. For other conditions, we can continue to fly as long as the operational procedure is completed and the condition is fulfilled. 

 

 

 

 

When the pack flow control valve is affected, if we look into MEL 21-52- 01 (Air Conditioning Pack), there is a maintenance procedure required. This means the flight crew has no choice but to go back to the ramp.

 

 

IDENTIFING THE PACK FLOW CONTROL VALVE

 

Ok, then how can the flight crew identify if the PACK regulator fault ECAM is associated with the pack flow control valve?
 Other conditions, such as pack outlet temperature, pack compressor outlet temperature, and ram air inlet, are relatively easy to identify if we refer to the FCOM.

 

 

 

But when it comes to identifying whether the pack flow control valve is affected, it is quite ambiguous unless the flight crew is aware of the detailed system.

 

 

example of pack regulator fault.

 

 

Flight crews need to identify the related ECAM correctly and apply the MEL correctly so that they can avoid unnecessary ramp returns.

 

another example of pack regulator fault during flight.